berryHandleObject.h

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/*===================================================================

BlueBerry Platform

Copyright (c) German Cancer Research Center,
Division of Medical and Biological Informatics.
All rights reserved.

This software is distributed WITHOUT ANY WARRANTY; without
even the implied warranty of MERCHANTABILITY or FITNESS FOR
A PARTICULAR PURPOSE.

See LICENSE.txt or http://www.mitk.org for details.

===================================================================*/

#ifndef BERRYHANDLEOBJECT_H_
#define BERRYHANDLEOBJECT_H_

#include <berryMacros.h>
#include <berryObject.h>
#include <org_blueberry_core_commands_Export.h>

#include <QHash>

namespace berry {

class BERRY_COMMANDS HandleObject : public virtual Object { // extends EventManager implements IIdentifiable {

public:

  berryObjectMacro(HandleObject);

private:

  static const uint HASH_CODE_NOT_COMPUTED; // = 0;

  static const uint HASH_FACTOR; // = 89;

  static const uint HASH_INITIAL;

  mutable uint hashCode; // = HASH_CODE_NOT_COMPUTED;


protected:

   bool defined;

  const  QString id;

  mutable QString str;

  HandleObject(const QString& id);


public:

   bool operator==(const Object* object) const override;

   QString GetId() const;

   virtual uint HashCode() const override
   {
     if (hashCode == HASH_CODE_NOT_COMPUTED)
     {
       hashCode = HASH_INITIAL * HASH_FACTOR + qHash(id);
       if (hashCode == HASH_CODE_NOT_COMPUTED)
       {
         hashCode++;
       }
     }
     return hashCode;
   }

    bool IsDefined() const;

    virtual void Undefine() = 0;
};

}

#endif /*BERRYHANDLEOBJECT_H_*/